We’ve recently upgraded our system. It now produces three to four times more electricity than we use on almost all days. We are thus not entirely free of the grid – but have yet to draw from it. At night, (or when overcast) we run from battery power. During each day we sell 15-30 kWh (at a current 20 cents per kWh).
Our all solar house was self-built in five months. Hi-tech construction resulted in a superb and workable waterfront home in Australia’s remote far north. It was even built using mainly solar energy. Here’s how we did it.